Concept Guide
MSTP Sample Congurations
The running-congurations support the topology shown in the following illustration.
The congurations are from Dell EMC Networking OS systems.
Figure 97. MSTP with Three VLANs Mapped to Two Spanning Tree Instances
Router 1 Running-Conguration
This example uses the following steps:
1 Enable MSTP globally and set the region name and revision map MSTP instances to the VLANs.
2 Assign Layer-2 interfaces to the MSTP topology.
3 Create VLANs mapped to MSTP instances tag interfaces to the VLANs.
(Step 1)
protocol spanning-tree mstp
no disable
name Tahiti
revision 123
MSTI 1 VLAN 100
MSTI 2 VLAN 200,300
!
(Step 2)
interface TenGigabitEthernet 1/21
no ip address
switchport
no shutdown
!
interface TenGigabitEthernet 1/31
no ip address
switchport
no shutdown
!
(Step 3)
interface Vlan 100
no ip address
tagged TenGigabitEthernet 1/21,31
Multiple Spanning Tree Protocol (MSTP)
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